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Another air pump question

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Old 09-15-12, 04:58 PM
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Another air pump question
I just took the air pump off my car and replaced it with a pully and now it seems the lower of the two pipes it was hooked too has the sound of an exhaust note. Is this normal??? Anyone know how to remedy this???

Thanks

Elliot
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Old 09-16-12, 08:57 PM
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When I eliminated my air pump I put a 1/2 inch crankcase filter on that pipe and it muffled the sound to a negligible level. I'm not sure of the actual cause for the noise though. Perhaps someone here with a little more experience could enlighten both of us.
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Old 09-16-12, 10:07 PM
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I think i'll do that. Still would like to know what purpose it serves.
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Old 09-17-12, 09:03 AM
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still running the main cat?
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Old 09-17-12, 09:56 AM
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I'm not running the main cat , and I put a cap on that pipe , is that a bad thing?
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Old 09-17-12, 12:34 PM
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no but you should block off the ACV.
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Old 09-17-12, 01:52 PM
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Originally Posted by RotaryEvolution
no but you should block off the ACV.
I blocked both of the pipes off .
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